After a lawsuit filed in federal court Monday against the University of Tulsa implicated a former basketball player for the school, he responded in a 16-page letter posted online.

An open letter by Patrick Swilling Jr., who is the son of former five-time NFL Pro Bowl linebacker Patrick Swilling Sr., is his first response to allegations in the lawsuit filed by a female Tulsa student in the U.S. District Court for the Northern District of Oklahoma.

Corbin Brewster, Swilling's attorney, confirmed that his client wrote the letter but said it was a draft that had been released early.

The lawsuit alleged Tulsa failed to comply with Title IX in adjudicating her claim of sexual assault against Swilling earlier this spring. It further asserted that Tulsa should have known of at least one and as many of three prior allegations of sexual assault and misconduct against Swilling.

"Yes, I am the son of a former NFL player and I am also a regular young man continuing to mature and find my way in life," Swilling wrote. "I have feelings, I have a social life, I have dreams, I have goals, and yes I've made mistakes, but no I have never sexually assaulted anyone."

The alleged assault at Tulsa occurred on Jan. 27, and the woman who filed the lawsuit reported it on Feb. 11. Swilling was suspended from the team the next day. After a university investigation and a hearing in March, Swilling was found not responsible.

Tulsa police also investigated. District attorney Tim Harris declined to file criminal charges in April, and Swilling was reinstated to the team following the season.

According to the lawsuit, "Within two weeks of opening an investigation, Tulsa PD located and spoke with three additional women who alleged similar sexual misconduct and rape by Swilling, all dating from before Plaintiff ever met Swilling."

In his letter, Swilling responded to two of those allegations. He included tweets and screen grabs of the Twitter account of the woman who filed the lawsuit, as well as her written statement to the Tulsa Department of Security.

Swilling had also been accused of sexual assault by a female student at the College of Southern Idaho in 2011. A police report was filed, but that woman declined to pursue the case. The school told USA TODAY Sports it never investigated, as it is required to under Title IX, and the woman never returned.

That woman, Lexi Mallory, came forward first in a story by ESPN published Monday.

"I knew I wasn't going to get anywhere because I knew the type of person that Patrick was," Mallory told USA TODAY Sports on Monday, "so I felt like it was a waste of my time because nothing was going to come of it besides me being tossed around like I was nothing continuously."

In his letter, Swilling included a statement purportedly from a former friend of Mallory's who asserted her statements about the alleged assault are "a lie."

"My life has changed drastically since these allegations have been brought against me," wrote Swilling. "I've lost friends, I've lost loved ones, my goals have changed, my image has change (sic) and I've lost Patrick Swilling Jr. in it all. I'm not the same person I was before the allegations, I can't be."

Swilling was attempting to walk on to the football team after exhausting his basketball eligibility. He announced on Twitter this week that the NCAA had denied his progress-toward-degree waiver. Swilling tweeted Wednesday that the NCAA "lacked confidence I would complete my remaining 27hrs left to graduate while they insisted they understood the circumstances."

In a statement, Swilling's attorney defended the university's investigation and hearing.

"The allegations in the recent lawsuit that Patrick sexually assaulted other women are unsubstantiated and false," said Brewster. "The lawsuit appears to be an attempt to further damage Patrick's reputation and negatively impact his opportunities to obtain NCAA eligibility this year. The timing of the lawsuit perfectly corresponded with Patrick's application to the NCAA for an eligibility waiver. Unfortunately, Patrick found out (Wednesday), in the wake of publicity covering the lawsuit, that his application and appeal for eligibility were denied by the NCAA.

"Patrick is determined to continue defending his reputation against the false accusations and is considering all available options, including a lawsuit for defamation."